Get ready to get 2X visibly fuller, thicker hair* because Dove Hair Therapy Strength & Fullness Boost Conditioner isn’t your typical conditioner. This hair conditioner is formulated with serum and retinol for fine, thin hair that needs special care. This hair strengthening treatment strengthens and adds fullness to your hair, wash after wash. Dove Hair Therapy Strength & Fullness is a paraben-free conditioner that features potent moisturizers and nourishing ingredients for care at the level of hair's cortex. So if you’re looking for soft, visibly nourished hair, look no further than this conditioner. While you hydrate hair with this hair thickening shampoo and conditioner system, let the potent moisturizers and nourishing ingredients restore your fine, thin hair during your hair care routine. This thickening shampoo nourishes and softens hair from the first use. To refresh hair, apply after shampooing your hair with Dove Hair Therapy Strength & Fullness Boost Shampoo, and leave it on for a minute before rinsing. Unilever’s ongoing work on alternatives to animal testing for more than 30 years, and its commitment to promote their adoption globally, has been recognized by PETA, which has listed Unilever as “a company working for regulatory change.” Globally, Dove does not test on animals and is certified by PETA as Cruelty-Free. *system vs. flat hair **nourishes at the level of hair's cortex